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Finding the Fourth Proportional to 556,030.72, 767,404.38 and 352,100.26

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Solution

The fourth proportional to 556,030.72, 767,404.38 and 352,100.26 is: 485,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,030.72 : 767,404.38 = 352,100.26 : x
  2. Step 2: Convert to fraction form
    556,030.72/767,404.38 = 352,100.26/x
  3. Step 3: Cross multiply
    556,030.72x = 767,404.38 × 352,100.26
  4. Step 4: Simplify right side
    556,030.72x = 270,203,281,723.14
  5. Step 5: Solve for x
    x = 270,203,281,723.14/556,030.72
  6. Step 6: Final answer
    x = 485,950.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.